2. music
  3. 1005529764

What is Super Bit Mapping

I just bought a cd on Sony, Tchaikovsky and Sibelius Violin concertos, Isaac Stern and the Philadelphia Orchestra under Eugene Ormandy. The playing is superb and the sound quality very high, at least on first hearing. A sticker was added on the front of the jewel case proclaiming SBM. What is it? What are the advantages or disadvantages of this process.
pbb
lenardd
24 posts
 
Here, have a look:

http://www.daisy-laser.com/tech3g.htm
pbb OP
1,140 posts
 
Lennardd. Thanks. I don't know if it is the SBM, but this cd sounds, indeed, very good. The quality of the instrumentalist and orchestra don't hurt either! Regards.
phild
603 posts
 
The above link probably explains it better than I can, but it's Sony's patented dithering process to go from 24 or 20 bits down to the 16/44.1 redbook CD standard. Their goal is to capture more than 16 bits of sound in the 16-bit format. They claim that it makes a 16 bit CD sound more like 20 bits of information. Many of the Columbia/Legacy reissues use the SBM process and I think most sound quite good.
More to discover